Fireproof construction.



No. 694,720. Patented Mar. 4, 1902.

. P. r. BRANDSTEDT Y F|REPB 00 F GUNSTBUQTION. (No Model.) {Apphcatmn filed Oct. 30, 1901.) 2 she t Sh t FELT" Z I x Z I -4 F g a Q WITNESSES II'N VE N 70/? gal/r Paulf mndsieili.

Patented Mar. 4, !902.

.wm TT DGw EU, T w s t D .NNO Du BM. F R 9 PM UNITED STATES PATENT OFFICE.

PAUL F. BRANDSTEDT, OF XVASHINGTON, DISTRICT OF COLUMBIA.

FI RE'PROOF CONSTRUCTION.

SPECIFICATION forming part of Letters Patent No. 694,720, dated March 4, 1902 Application filed October 30, 1901 7 serial No. 80,569. (No model.)

.. stud for the purposes stated of avery simple,

inexpensive, and stable form, capable of being conveniently handled and adapted to effectively serve for the intended purposes.

An essential object of my present invention is to provide a metal stud of the character noted having means for interlocking with each other when placed at right or other angles to each end member to rest on pillars or walls, whereby to provide a floor structure.

My present invention also seeks to provide a metallic stud of the character stated havingmetal lath-receivin g faces and lath-clips connected thereto adapted to extend between and dumb the lath on the stud.

. In its more subordinate features my invention consists in the peculiar combination and novel arrangements of parts, all of which will hereinafter be fully explained, and particularly pointed out in the appended claims, 1

reference being had to the. accompanying drawings, in which Figure 1 is a diagrammatic plan view illustrating my invention as applied for use as a ceiling or floor support. Fig. 2 is a detail perspective view of a portion of two crossing stud members interlocked. Fig. 3 is a horizontal section of the same, taken practically on the line 3 3 of Fig. 4. Fig. i is a crosssection on the line 4 4: of Fig. 3. Fig. 5 isa horizontal section of the parts shown in Fig. 2 and illustrates a slightly-modified form of construction. Fig. 6 isa detail viewillustrating one end of the stud. Fig. 7 is a similar View of the other end thereof. Fig. 8 is a detail View of one end of the stud,illustrating the extension memberbent down in two positions in dotted lines. 7 Fig. 8 is a section on the line a a of Fig. 8. Fig. 9 isa detail view of a portion of the stud, illustrating the man nerof joining itsclainp member with a metal lath or screen body. Fig. 10 is a diagram showing the, stud arranged as a partition structure. Fig. llis a cross-section of the stud with amodified arrangement of clamp connection. Fig. 12 is a detail perspective View of a further modification of clamp connection, and Fig. 13 is a section of the same on the line 13 13 of Fig. 12.

The main feature of my present invention lies in a metal stud having its ends peculiarli constructed, whereby they may be bent over in different angle planes to the body portion proper to provide for adjusting the ends to lengthen or shorten the same to fit against ceilings of different heights without requiring an independent or extensible sectionsuch, for example, asshown in my other pending application No. 65,833, filed June 24:, 190l and also to provide for several of the stud members being interlocked with each other in such manner as to produce an economical and effective floor or ceiling support.

The stud member (designated by l) is preferably in the nature of a sheet-metal strap bent-up to the desired shape, and in the present instance, on} the score of rigidity, great tensile strain, and other reasons hereinafter explained, the said memberin cross-section has asubstantially U shape, the sides of which are bent upon themselves in a A shape with the outer members 2 disposed in parallel planes, whereby to form opposite lath-receiving surfaces whenthemember is to be used as a partition-stud. One end of the'member 1 may be cut square across to form a flatbase, or it may have an extension 3, as indicated in Fig. 10, to permit of it (the base) being nailed to the floor. The other or upper end of the said member 1 has its V ends cutabout midway thereof and lengthwiseasuitable distance, as indicated by 50in Fig. 8, whereby to provide an extension member 4, havinga series of nailing-apertures 4" in different horizontal planes. By thus forming the upper bers 1, that extend crosswise of themembers or flange for engaging and being nailed to the ceiling. As the members 1 are usually manufactured in standard lengths and as the heights of ceilings as a rule do not vary to a great extent from the standard heights, it follows that the upper end 4 of the stud can be bent over (see Figs. 8 and 10) to properly engage with the ceiling and form a firm means for securing the upper end of the stud without the necessity of independent extensible sections, and thereby reduce the cost of putting up the studs to the minimum. WVhen used as a ceiling-rafter or floor-support, both ends of the member 1 are cut to form central extensions M, and when intended for said use the ends of the member are cut down on the lines forming the opposite edges of the backbone or part Y, and the outer sides 2 are retained and continued the same length as the extension 4, as indicated by 2 2 in Figs. 5 and 7, the purpose of which will now be explained. When utilized as ceiling-rafters, the members 1 are used in connection with members 10, having the same cross-sectional shape of members 1, but made with square ends and with cross-slots 10 in the backbone or part Y suitable distance apart. In the cooperative assembling of the members 1 and 10 the members 10 may have their ends sup ported in two opposing walls or one end supported in a wall and the other upon pillars or piers 2, as indicated in Fig. 1, and when in the latter way the ends resting on the piers a may also have tongues or extensions to rivet, clench, or otherwise interlock with the mem- 10. The members 1 by reason of the peculiar formation of their ends can be conveniently joined with the members 10 by extend.

ing the members 4 through the slots 10, as clearly shown in Figs. 2, 3, and 4, and riveting the ends 4 of two'opposing members 1 together, as shown. When joined as shown in Fig. 2 the side portions 2 of one member 1 are cut off andthe side portions 2 of the opposing member 1 are lapped over the outer faces of the sides 2 2 of the member 10 and riveted thereto.

Instead of fastening the several members by rivets, as stated, they may be more economically joined by providing the backbone or part Y of the said members l-with crossslots 4, through which the ends 4 are adapted to pass and be clenched back, as at P in Fig. 5, and, if desired,instead of riveting the p0rtions 2 they may also be formed with tongues to pass through and clench on the sides of the member 10.

By constructing the two members 1 and 10 as shown and described the member 1 has a firm bearing on member 10 by reason of its end 4. passing through member 10 and the sides 2 lapping on the said member 10, and when thus connected the members 10 and 1 form a substantial, cheap, and edective ceiling or rafter or floor-joist construction, and,

furthermore, by reason of the peculiar con struction of the stud 1 it can be readily adapted as a horizontal supporting member or as a partition-stud.

When used as a partition member, the stud 1 has attached lath-clamp 9, which may consist of bendable strips riveted crosswise on the back Y of the stud, with. its opposite or clench ends projected to engage with and clench over a metal screen or lath-body. (See Figs. 9 and 12.) In a building construction where the member 1 is to be used as a horizontal as well as vertical support I prefer to connect the clamps 9 detachably by passing them through slots .9 s in the back Y of the member, as shown in Fig. 11, or to provide the clamps with supplemental clips 9 to pass through slots 8 8, arranged in avertical plane, as in Figs. 12 and 13.

From the foregoing description, taken in connection with the accompanying drawings, it will be observed I have provided for extending the upper end of the stud without the use of independent or supplemental extensions for accommodating the studs to the rafters irrespective of ordinary variation in the height of the ceiling. The several parts are so arranged and adapted to be cooperatively combined or assembled in a convenient and expeditious manner for the different purposes stated.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A fireproof construction, comprising a U-shaped stud having cross-slots in its back portion, and a second U-shaped stud having extensions at one end adapted to pass through the slot in the first stud, and be interlocked therewith, for the purposes described.

2. A sheet-metal stud, comprising a central corrugated body portion, the sides of which are bent back in parallel planes to form lathreceiving surfaces,the extremities of said surfaces having cut-away portions extending lengthwise thereof, whereby to form side extensions, for the purposes described.

' 3. A sheet-m etal stud, comprising acentral corrugated body portion, the sides of which have extensions bent to form parallel lath-re ceiving faces, and lath-clamps consisting of bendable members, secured to the back of the aforesaid body portion transversely thereof, and with its free ends projected beyond the lath-receiving faces, as set forth.

4. A sheet-metal stud comprising a central corrugated body portion, the sides of which have extensions bent to form parallel lath-receiving faces, the back of the corrugated portion having slots and lath-clamps consisting of bendable strips, adapted to interlock with.

the slots in the back of the stud-body, and having the ends thereof projected beyond the lath-receiving faces, all being arranged substantially as shown and described.

5. An improved fireproof building construe tion eornpri sing, in combination, asheet-metall first stud, and adapted to interlock with each corrugated stud, the sides of which are bent other, substantially as shown and for the purbaek in parallel planes, and the back of which poses described.

has cross-slots, two other studs having the PAUL F. BRANDSTEDT. 5 same cross-sectional shape of the first stud, Witnesses:

and having theirendsformed with extensions, A. E. DIETERIC-H,

adapted to pass through the cross-slots in the LOUIS DIETERICH. 

